These blank baskets are used in conjunction with a back-flushing detergent to remove unwanted residue that builds up over time on the inside of your espresso machine. In particular, the 3-way solenoid valve can become blocked or barely functional due to the build up of oily residue and fine particles of coffee from the brewing process.
We highly recommend back-flushing your machine every few months or more frequently depending on how often your machine is used to ensure a long trouble free service life.
We recommend Cafetto Organic Machine Cleaner for back flushing, and don't forget about descaling your machine too!
